Question

How to find value of determinant when determinant of the adjoint matrix is given?

Answer 1

Answer:

❤️Hey mate ❤️

‍♂️ Here is your answer ______♥️

My attempt:

Knowing that

A(AdjA)=IdetA

I took the determinant on both sides:

det(A)det(AdjA)=det(det(A))

So,

det(A)det(AdjA)=(det(A))3

det(AdjA)=(det(A))2

det(A)=(AdjA)0.5

The adjoint was calculated to be 4

Thus,

det(A)=40.5=2

Why is the answer -2?

Step-by-step explanation:

Plz freinds don't report my answers ✖️

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